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1232131310120 = 2351713113831739
BaseRepresentation
bin10001111011100000101…
…111111100001000101000
311100210100100102210012102
4101323200233330020220
5130141401103410440
62342011110032532
7155006235222014
oct21734057741050
94323310383172
101232131310120
114355a9003a47
1217a966348748
138c2603b1049
14438c7a4d544
15220b59b3b15
hex11ee0bfc228

1232131310120 has 64 divisors (see below), whose sum is σ = 2957779281600. Its totient is φ = 460320240640.

The previous prime is 1232131310077. The next prime is 1232131310141. The reversal of 1232131310120 is 210131312321.

It is a happy number.

It is a super-2 number, since 2×12321313101202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1232131310092 and 1232131310101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6826790 + ... + 7004949.

It is an arithmetic number, because the mean of its divisors is an integer number (46215301275).

Almost surely, 21232131310120 is an apocalyptic number.

1232131310120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232131310120 is an abundant number, since it is smaller than the sum of its proper divisors (1725647971480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232131310120 is a wasteful number, since it uses less digits than its factorization.

1232131310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13831898 (or 13831894 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1232131310120 its reverse (210131312321), we get a palindrome (1442262622441).

The spelling of 1232131310120 in words is "one trillion, two hundred thirty-two billion, one hundred thirty-one million, three hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 131 136 170 262 340 524 655 680 1048 1310 2227 2620 4454 5240 8908 11135 17816 22270 44540 89080 13831739 27663478 55326956 69158695 110653912 138317390 235139563 276634780 470279126 553269560 940558252 1175697815 1811957809 1881116504 2351395630 3623915618 4702791260 7247831236 9059789045 9405582520 14495662472 18119578090 30803282753 36239156180 61606565506 72478312360 123213131012 154016413765 246426262024 308032827530 616065655060 1232131310120